The ramming pipe drapery is used for support to construct the crossing structures of underground passage, blind channel and etc.
用夯管帷幕作为支护来建造地下通道、暗渠等穿越构造物，在城市建设中是一项新的施工工艺。
The ramming pipe drapery is used for support to construct the crossing structures of underground passage, blind channel and etc.
用夯管帷幕作为支护来建造地下通道、暗渠等穿越构造物，在城市建设中是一项新的施工工艺。
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